Improper Restriction of Excessive Authentication Attempts in Nextcloud Enterprise Server and Nextcloud Server - CVE-2023-49792
Published: December 19, 2023
Vulnerability identifier: #VU84543
CSH Severity: Medium
CVSS v4: 6.9 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N]
CVE-ID: CVE-2023-49792
CWE-ID: CWE-307
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote attacker to compromise the target system.
The vulnerability exists due to improper restriction of excessive authentication attempts with misconfigured proxy. A remote attacker can perform a brute-force attack on the system.
Affected software
Nextcloud Enterprise Server
Nextcloud Server
Nextcloud Server
How to mitigate CVE-2023-49792
Install updates from vendor's website.
Nextcloud Enterprise Server - addressed in versions 23.0.12.13, 24.0.12.9, 25.0.13.4, 26.0.9, 27.1.4
Nextcloud Server - addressed in versions 26.0.9, 27.1.4
Nextcloud Server - addressed in versions 26.0.9, 27.1.4